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Cascade HR MCP Server
for AI Agents

Production-ready Cascade HR MCP server with 48 extensible actions — plus built-in authentication, security, and optimized execution.

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Cascade HR MCP Server
Built by StackOne StackOne

Coverage

48 Agent Actions

Create, read, update, and delete across Cascade HR — and extend your agent's capabilities with custom actions.

MCP Actions → Create Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Cascade HR MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Cascade HR tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Cascade HR call.

Tools Discovery →

What is the Cascade HR MCP Server?

A Cascade HR MCP server lets AI agents read and write Cascade HR data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Cascade HR MCP server ships with 48 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, and optimized agent context. Connect it from MCP clients like Claude Desktop, Cursor, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All Cascade HR MCP Tools and Actions

Every action from Cascade HR's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

Employees

  • Create Employee

    Create a new employee in Cascade HR

  • List Employees

    Get a list of employees from Cascade HR

  • Get Employee

    Get a single employee by ID

  • Update Employee

    Update an existing employee in Cascade HR

Jobs

  • Create Job

    Create a new job record for an employee in Cascade HR

  • List Jobs

    Get a list of jobs from Cascade HR

  • Get Job

    Get a single job by ID

  • Update Job

    Update an existing job record in Cascade HR

Emergency Contacts

  • List Emergency Contacts

    Get a list of employee emergency contacts from Cascade HR

  • Get Emergency Contact

    Get a single emergency contact by ID

Hierarchy Nodes

  • List Hierarchy Nodes

    Get a list of hierarchy nodes from Cascade HR

  • Get Hierarchy Node

    Get a single hierarchy node by ID

Bank Details

  • Create Bank Detail

    Create a new bank detail record in Cascade HR

  • List Bank Details

    Get a list of employee bank details from Cascade HR

  • Get Bank Detail

    Get a single bank detail record by ID

  • Update Bank Detail

    Update an existing bank detail record in Cascade HR

Working Pattern Override Components

  • List Working Pattern Override Components

    Get a list of working pattern override components from Cascade HR

  • Get Working Pattern Override Component

    Get a single working pattern override component by ID

Absences

  • Create Absence

    Create a new absence record in Cascade HR

  • List Absences

    Get a list of employee absences from Cascade HR

  • Get Absence

    Get a single absence by ID

  • Update Absence

    Update an existing absence record in Cascade HR

  • Delete Absence

    Delete an absence record from Cascade HR

Absence Days

  • Create Absence Day

    Create a new absence day record in Cascade HR

  • List Absence Days

    Get a list of absence days from Cascade HR

  • Get Absence Day

    Get a single absence day by ID

  • Update Absence Day

    Update an existing absence day record in Cascade HR

  • Delete Absence Day

    Delete an absence day record from Cascade HR

Absence Reasons

  • List Absence Reasons

    Get a list of absence reasons from Cascade HR

  • Get Absence Reason

    Get a single absence reason by ID

Entitlements

  • List Entitlements

    Get a list of employee entitlements from Cascade HR

  • Get Entitlement

    Get a single entitlement by ID

Benefits

  • List Benefits

    Get a list of employee benefits from Cascade HR

  • Get Benefit

    Get a single benefit by ID

Public Holidays

  • List Public Holidays

    Get a list of public holidays from Cascade HR

  • Get Public Holiday

    Get a single public holiday by ID

Working Patterns

  • List Working Patterns

    Get a list of working patterns from Cascade HR for a date range

  • Get Working Pattern

    Get a single working pattern by ID for a date range

Working Pattern Components

  • List Working Pattern Components

    Get a list of working pattern components from Cascade HR

  • Get Working Pattern Component

    Get a single working pattern component by ID

User Defined Field Schemas

  • List User Defined Field Schemas

    Get a list of user defined field schemas from Cascade HR

  • Get User Defined Field Schema

    Get a single user defined field schema by ID

Other

  • Get Hierarchy Path

    Get the hierarchy path for a node by ID

  • Get Employee Working Pattern Override

    Get working pattern override for an employee within a date range

  • Get Employee Absence Reason

    Get absence reason configuration for a specific employee

  • Get User Defined Fields By Source

    Get user defined fields for a specific source entity

  • Get User Defined Fields By Schema

    Get user defined fields for a specific schema

  • Get User Defined Field

    Get a single user defined field by ID

Set Up Your Cascade HR MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Cascade HR in under 10 lines of code.

MCP Clients

Agent Frameworks

Claude Desktop
{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

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All HRIS / HCM MCP Servers →

Cascade HR MCP Server Resources

MCP Code Mode: Keeping Tool Responses Out of Agent Context

Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.

11 min

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

Cascade HR MCP Server FAQ

Cascade HR MCP server vs direct API integration — what's the difference?
A Cascade HR MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Cascade HR. A Cascade HR MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Cascade HR at runtime. StackOne provides both.
How does Cascade HR authentication work for AI agents?
Cascade HR authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Cascade HR account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.
Are Cascade HR MCP tools vulnerable to prompt injection?
Yes — Cascade HR MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.
What is the context bloat of a Cascade HR agent and how do I avoid it?
Context bloat happens when Cascade HR tool schemas and API responses eat your Cascade HR agent's memory, preventing it from reasoning effectively. A single Cascade HR query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.
Can I limit which actions my Cascade HR agent can access?
Yes — you can limit which actions your Cascade HR agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my Cascade HR MCP server?
Yes — you can create custom agent actions for your Cascade HR MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Cascade HR's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Cascade HR MCP server?
Skip a Cascade HR MCP server if your integration is purely software-to-software — direct Cascade HR API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Cascade HR actions at runtime.
What AI frameworks and AI clients does the StackOne Cascade HR MCP server support?
The StackOne Cascade HR MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.

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